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Running Logtalk with GNU Prolog 1.2.13


From: Paulo Moura
Subject: Running Logtalk with GNU Prolog 1.2.13
Date: Mon, 24 Jun 2002 12:30:26 +0100

Hi!

There is a problem with the implementation of the GNU Prolog 1.2.13 predicate_property/2 built-in predicate that prevents Logtalk of correctly compiling predicate objects that call built-in predicates. An easy workaround is to turn off the GNU Prolog strict_iso flag (by default, it's on):

        | ?- set_prolog_flag(strict_iso, off).

This should be done before compiling any Logtalk source files. You can put the call in the gnu.config configuration file. The problem is corrected in GNU Prolog 1.2.14 that you can grab from the unstable ftp directory of GNU Prolog releases (go to the compiler web site for downloading). Please note that the problem is not related with the strict_iso mode but with a bug in predicate_property/2 that shows up by turning this flag on.

Happy logtalking!

Paulo


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Paulo Jorge Lopes de Moura
Dep. of Informatics                   Office 4.3  Ext. 3257
University of Beira Interior          Phone: +351 275319700
6201-001 Covilhã                      Fax:   +351 275319732
Portugal

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http://www.logtalk.org/pmoura.html
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